Jeangu Macrooy (; born 6 November 1993) is a Surinamese–Dutch singer-songwriter and actor. He was born in Paramaribo and has been living in the Netherlands since 2014. Macrooy's music is described as
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4017a601453f1f55b8b25e8f8705c5d8d72ea28669006d8aff1a6e1546323478. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f719b1d-570b-49e2-86b0-86c280c6a4d2.json and https://artists.proofprofile.net/proofs/artist/3f719b1d-570b-49e2-86b0-86c280c6a4d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90945c5dde85c136ee54980b0136e3c32fe00372f5879ffb879fe9ba4b5922b2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde31a1a97378c9f66ea3c9c58dc467ecc4f877edab07a9223ab8b51813139928. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92414f9dbbf6eabb4abd987a536f19dee870fa49d6dcdeac2af915e459a41fc7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3802e69e67308c8ae4a84fcc2cf50af1990c03b4ec1cce745f10b22813f37b57. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd772aad2b10c8d8cff34df7da57a5ac5e74d011283ee7d867987245c1b991c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ad8d6aea49afe3629b85bd0442375378ae62670ef13ea9ba38aa298a327410. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a05575865e01475a9f79ec9f8a4578ecdce5513b855f2c2b20bbd2410ce0b71. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d349d805a8e7c47eb4a4808b309e68850e3aacfc93bc84a19cad3552219b0ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITFGO1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2b6a483a92b32b2c60624fe1caa930f2580ee9570dc02ca7b7cb9101b22c13. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa9ce5d91543483fde15f07ebecd2c60e0c2e71fa253744a715289ca282586c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8543ff24a46ea3b4b4fbbdced1fc4eea196b850560af02c4a442cb582897f27a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24301b25469ecd87b1e63462abae6197be4f8d5d64b7dd3770575ec57bb5e26. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF571900008.
Grow - Live acoustic at Concertgebouw Amsterdam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08cff1769ba400ea10c0a3507a8a9b9f76072e54553bb911e56a9b733599f9f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e09e1d12625a03341b2067fa791afb449eb71b6a4dacfd0b1fb71adc53654d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a6bf024bc3726d1b3180edcb2f4abc93348e34e886ab2f2b4884f0718a3ac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be7a8e264d34555a0578d4258592bdf824b4e35345db9c7ab6a79a402345fce. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16a6b0eae11426766037ed761e6d12e36700412b674003d50f1550296070f00. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a6bf024bc3726d1b3180edcb2f4abc93348e34e886ab2f2b4884f0718a3ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72636e1ee8da326f019d691dba2bceaf3479694e33ef41a189a35eec6e8913e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6f9302eb965bbdd6023b90da465813338d1c3d4cddb71d3acc563814b3a507. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988d0ca1e02d7bfba73086d53b8f442abbf1a1cff648ceb78e790ae11a369843. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6747160b49888ca6c5b8ff55cc3067412a4ae8d80e3e4503bb88a83389468. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277ff2af0a218fb46d8932655e4d07f7bd9566eae52f49566de808d446bacf0d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06e7a6cd0c8cd8e9b8db681f65ac1272b7936e19ccd5b8412a2bfc2cccd9452. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF572400027.